body{
  margin: 0;
  padding: 0;
}
.app-container{
  width:100vw;
  height:100vh;
  overflow: hidden;
}
.header{
  position: absolute;
  width: auto;
  top: 4px;
  left: 204px;
  height: 30px;
  z-index: 999;
  display:flex;
}
